Improvement in sewing-machine starters



vNITEE STATES JAMEs K. P. PINE, 0E TRoY, vNEW YoRK.

IMPROVEMENT |NV SEWING-MACHINE STARTERS. l

Specification forming part of Letters Patent No. 173,335, dated February8, 1876; application tiled l December 18, 1875.

TJ all whom it may concern:

Be it known that l, JAMES K. P. PINE, of Troy, in the county ofRensselaer and State of New York, have invented a new and valuableImprovement in Sewing-Machine Starters; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation ofthe same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawings is a representation of a transverse verticalsection ot' my sewingmachine starter, and Fig. 2 is a longitudinalvertical sectional view of the same.

'This invention has relation to improvements in devices for starting andstopping sewingmachines; and it consists in the arrangement and novelconstruction, in connection with an actuating-shaft, of a loose pulley,a fixed frictional disk, a brake, and the actuating mech anism, wherebythe pulley is thrust against the i'rictional disk for starting the.machine, and against the brake for stoppingthe same, all ashereinafterbshown and described.

In the annexed drawings, the letter A designatesan actuating-shaft,having its bearings in standards B B', and extending under the tablefrom end to end thereof. This table may have upon it anynumber ot'machines,.

by means of which and a'bolt or screw, b, it is detachably secured tothe shaft, and a leather face, D, having spaced perforations c, theobject ot' which will hereinafter appear. P indicates a pulley-wheel,which is loosely 'applied upon shaft A, between disk U and a dat Ysemicircular brake-plate, E,which is also leather-faced, so as to have adegree ot' play between the two.y Plate E is rigidly secured, by i meansof an angular shank, d, to the door, and

is provided with spaced lugs e, between which is passed., and in whichis fulcrumed, a vertically-vibrating angular operating-lever, F.

This lever, at its upper end, is bifurcated, and. is provided with spursf, projecting inward to- Jauimed against the leather-covered face ofdisk C, and by itst'rictional contact therewith Awill communicate motionto 'the machine. When the disk and pulley are thus in contact,

cushions of air will be inclosed in perora-tions c in the leather face Dof the former, which, when'the necessity occurs for stopping themachine, will greatly facilitate the separation of the disk and pulleyby preventingsuctiou. This separation is accomplished by depressing thetreadle, and raisingthe power end of lever F, being a reversal of themovement above described for gearing the shaft and pulley, and the saidpulley will be jammed against the brake-plate E, when the rotation ofthe pulley, Which, Yalthough disconnected from the disk, would otherwisecontinue, will be immediately arrested, and the danger of breaking andentangling the thread etfectually obviated.

As shown in Fig. 2, hub Gais hollow, and` the hollow is iilled with feltor wicking, which is saturated with oil poured in through a duct,

closed, when requisite, by a plug or screw, s,

from which oil chamber or hollow j the lubricant is discharged throughan opening, z', upon the shaft A.

What I claim asnew, and desire .to secure by Letters Patent, is-

The combination, with an actuating-shaft, of a loose pulley, africtional brake, and an actuatingtreadle for thrusting the pulleyagainst the brake and stopping the machine, substantially as described.

In testimony that I claim the above'I have hereunto subscribed my namein the presence of two witnesses.

JAMEs K.- P. PINE.

Witnesses JAMES PINE, HERBERT A. VIETs.-

